Is is possible to make collection_select return multiple values? If yes,
can it be done?
<%= collection_select(“group”, “id”, @groups, “id”, “name”,
=> true}) %>
You have a nil object when you didn’t expect it!
You might have expected an instance of ActiveRecord::Base.
The error occured while evaluating nil.id_before_type_cast
The @groups is Group.find(:all).
Can anyone help?
Thanks in advance,